Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Well then with only a 9.2:1 CR there is only 1 way to get more flow for those big heads. Did someone say Turbo/Supercharger? With the converter being high a turbo will be under load before you leave the line.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Super73,
Isn't shifting at 7,400 RPM a little high for my stock block? I was thinking of shifting at 6800>7000 RPM.

I will be adding a couple pieces to make this thing run a little better.

A 4200 Stall and 4.10 locker for the 9".

Also are these numbers at the wheel or flywheel?

Thanks
Tri5

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

GMC70C20


You did not give me your stall speed. So, I let the computer figure out what it feels is best as well as you shift points. It says a 3,600 verter and 7,200rpm would be best.


http://73-ls1.com/67trucksetlist/Eng...0_NA_Graph.JPG


http://73-ls1.com/67trucksetlist/Eng...0_NA_Chart.JPG


http://73-ls1.com/67trucksetlist/Eng...0C20_NA_ET.JPG

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

The engine program spits out crank HP.

The Drag ET program is going to tell you optimal shift points for the combo you have. I can readjust your shift points to the 6,800-7,000rpm mark as I am saving everyones set up. This way if someone wants to know what changes they might see by changing stall speed, gear ratio, tire, little bit of laughing gas, I can put it through for them.. Please keep in mind htough, this is a computers best guess at the combo's we are presenting it so they may not be dead on.

If your set up has not been to a machine shop, balanced and using better rod bolts, I'd keep it bellow 7,000 rpm for sure. Probably that 6,800 mark.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Tri5,

Here is what the computer says for 6,800 shift points with the current combo.

http://73-ls1.com/67trucksetlist/Eng...i5_6800rpm.JPG



Here is what is says for that with the 4,600 verter and 4.10's


http://73-ls1.com/67trucksetlist/Eng...verter_410.JPG



Now the computer has "optimized" your stall and gear and thinks it would go best with a 5,300 verter and 5.00 rear gear and locking the converter in third. I didn't let it go beyond a 5.00 gear. Might have wanted more..

http://73-ls1.com/67trucksetlist/Eng...rter_5gear.JPG

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

That's what I thought, that without the rod bolts then 6800 would be max for this setup.
Looking at the Drag ET, it looks a little low at the 1320' mark, I would think that I could get more that 105MPH somewhere around 108/109MPH, but that 60' time should be great if I could cut it.

BTW: I do have a little 150 wet shot of laughing gas that I might use once I get it road ready.

Tri5

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Here's my flow number 301 @ .700

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Any idea on the flow at .300 and .500 for both the intake and exhaust? Low end TQ numbers can vary a lot with out several data points for the intake flow numbers.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

I'll call him back, i didn't even think about getting all of that. We started talking about my converter, fuel lines and everything else.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

If you read this before you call him back, also get exhaust flow numbers.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

OK, you 'really' want to put EA to the test...
Heres one for you. This is my Nova small block. Without every detail EA will kick back some silly numbers sooooooooo...

Short block
4.165" bore, 9.000" deck height Motown block

4" stroke 37pound Scat Pro light knife edged crank

Oliver 6" rods, custom JE pistons w/ 11cc dish
Cometic 4.2" bore x 0.039" bore head gaskets
(net 13.29:1 compression)

Gilbertson 12 qt screened stripper wetsump box pan w/ Titan oil pump.

Cam,, almost hate to give those specs away, but there onl relative to this combination so,.. A Jay Allen custom roller. From the CamDr (0.050 #'s)
Intake
open 17.09 BTDC
Lobe CL 110.63
I close 68.35 ABDC
Duration 255.73 @ 0.050
Max lobe lift .4548
net valve lift w/ 1.8 Jesel shaft rockers, .819 (-0.018 lash = .801" valve lift)

Exhaust
open 72.18 BBDC
Lobe CL 115.52
close 21.14 ATDC
Duration 273.3 @ 0.050
Max lobe lift .4444
net valve lift w/ 1.8 Jesel shaft rockers, .799 (-0.020 lash = .779" valve lift)

Heads are a set of AllPro 245RR 23° raw castings built by Uratchko. Valves were plunged in at 17°, 2.18" titanium valves, Exhaust are 1.65"castings.

Flow numbers are:
0.1" = 57/44
0.2" = 123/102
0.3" = 190/150
0.4" = 249/194
0.5" = 298/233
0.6" = 335/241
0.7" = 351/256
0.8" = 365/264
0.85" = 374/-

Exhaust is Lemons 2 to 2-1/8" stepped fenderwell headers, 4" collectors, no mufflers.

Intake is a Uratchko ported Edelbrock RR supervictor developed to match / compliment the AllPro runner. Carb is a single Prosystems Dominator (wet flow was right at 1300cfm if I remember correctly,, looking for that build sheet)

Run the thing on gas (VP C-14) and then I'll tell ya what the Superflow dyno said ;) What I'd like to see is what happens when the motor is converted to alcohol. Still toying with the idea of injection, but it will probably be a toilet instead 'IF' I ever make that change.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Marv,

If you want you can take your specs down and PM them to me. For those of you that want to see how accurate it is but don't want to give everyone you combo, you can PM me.



I gave you two sheets since it didn't start falling off until 7,200 and carried fairly well till 8k.


http://73-ls1.com/67trucksetlist/Enginedrag/Marv1.JPG


http://73-ls1.com/67trucksetlist/Enginedrag/Marv2.JPG

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

You guys want to seee why Performance trends Engine Analyzer and Drag Analyzer is one of the most respected simulator softwares out there,,,,
here is the actual Superflow Dyno sheet for the motor detailed above. The sheet scaned so freeking big I felt a link was better than inserting the image. So I made a page and shrunk it down a bit.

That Engine analyzer sutff it's just junk isn't it (LOL). It missed by 8 freeking horsepower at the peak,, that's only 1% folks. Pretty impressive for a program. Try that with DeskTop dyno and see what happens (what a joke) One thing it did miss a little on is the BSFC, this motor is unbelievably efficient. The old 650HP combination would burn a full gallon per pass (including driving to the staging lanes and driving the return road). This thing is making 150 more HP, and I'm burning only 3/4 of a gallon round trip.

One key here to such deadly results,, you have to have EVERY stinking detail, no guess work or you get a guess in return. EA and DA has always been dead on if given complete and accurate input. Nice job Super,, that's a lot of work isn't it!

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Not too Shabby. I decided to break it down in to 100rpm incraments for you. Then I put both in to an excel sheet to look at how far off it was accross the full span.

http://73-ls1.com/67trucksetlist/Enginedrag/MarvD1.JPG


http://73-ls1.com/67trucksetlist/Enginedrag/MarvD2.JPG


http://73-ls1.com/67trucksetlist/Enginedrag/MarvD3.JPG



http://73-ls1.com/67trucksetlist/Enginedrag/MarvD.xlsx



It was an average of 1.84% off the full RPM of your pull. It read a little higher than what you really made, but I'd say it would give anyone a very good idea of what they would run if all the info was correct and accounted for.



I can sit and play with this thing for hours.. Playing with the optimize feature is fun. Here is the programs optimized cam over your existing. Red/Light Blue are the optimized and the Green/Dark Blue is your current set up. I asked it to keep the idle vacum above 5 as that what it said your existing set up was producing.


Loss of bottom end TQ but quite a bit more up top.

http://73-ls1.com/67trucksetlist/Eng...Doptimized.JPG

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

hey super 73 would you please plug these #s in i'd be verry greatfull 383sbc 5.7 rod
4.030 bore
3.75 stroke
speedpro H-859 CP30
compression 8.96 to 1
dart iron eagle 200 sbc 23 deg
comb 72cc
2.02/1.60
200cc intake vol
75cc ex volgot these #s from web published by
Chevy High Performance Magazine

.200 129/112
.300 182/139
.400 226/166
.500 258/178
.600 255/186

flow in 262cfm@.500 lift/28" from dart
flow ex 175 cfm@.600 lift/28" from dart
Crane cams
http://www.cranecams.com/?show=brows...64&lvl=2&prt=5
wg 1064 grind 300 2-H
in .488 ad dur 300 w 1.5 ratio
ex.510 ad dur 310
HARLAND SHARP 1.6
B&M 144 @ 8 lbs boost
holley 750 cfm dbl pmpr mech sec
hooker 1 3/4 32"x 3" coll
72 swb 3800 lbs w fat bastard behind the wheel. very curious as to these#s i was told by white performance +600 HP +600 TQ. thanks in advance super 73 happy holidays!!!!

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Phipp,
I really need more head flow data. Any chance you can give me 3 points of flow?

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

i'm on it i'll go to dart for this

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Thats all the info there is on darts website. I've never had them ported or flowed. i'll keep trying though.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

got these #s from web published by
Chevy High Performance Magazine for dart 23 deg 180 -230 cc iron eagle heads

.200 129/112
.300 182/139
.400 226/166
.500 258/178
.600 255/186
i will post these on origional build sheet thanks very much!

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Here's some flow numbers super.

intake/exhaust
.100- 66/55
.200-127/105
.300-184/134
.400-234/161
.500-284/183
.600-319/199
.650-331/205
.700-301/216.5

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

thanks for offering up some flow #s i apprechiate your help v/t phipp

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Ok.. I'll try to get both of yours done tonight..

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

4.560bore x 4.5 stroke 6.535 rod flat top piston
2.3 int 1.88 exh 119cc 365 cc int runner 2.300 Intake 160 220 277 325 360 379
1.880 Exhaust 132 159 193 219 234 250
@28"H2O. cam @50 dur 265int 275exh .700lift int/exh 112lc
int 7.940 height 4500 flange.carb 1050 dominator.
headers 2 1/4 primary 31/2 collector approx 30"tube

trans 2spd 1.80 1st ,ptc 10" 4800 stall
4.10 gear 31x10.50 w tire
2800lbs car

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

If you get bored, let me know and I'll give you all the specs on my Nova and you can plug the power curve into DA. Maybe you can find out where that illusive 8 is hiding. But don't want to take time and effort away from the guys here.

Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.
 

Thanks you very much for your time.

Engine info
Bore-4.155
Stroke-3.75
6" rod, scat crank, Je flat tops, comp cams internal wet belt, electric water pump, areo a1000 fuel pump. msd digital 6, 36 deg total timing.
Head data:
227cc Racing Head, Angle Plug, Standard Exhaust, 65cc 1068
http://www.airflowresearch.com/227sbc_rh.php
Compression ratio-11.6:1

Brodix HV1000
holley 950 mech with about 6.5" vac in gear
Header Data:
*1 3/4"* Tube Diameter hooker super comp
*30" * Tube length. to collector 3"

Cam info: ATTN: *4-7 SWAP*
# Grind No./Type RR-602 ROLLER Good cam for 3500LB bracket racing drags. 3000 stall. 4.56-4.88 axle ratio. 11-12

# 3500-7500 Valve Lift - INT
# .602 EXT w/ 1.6 should be 6.42
# .602 Valve Lash Hot - INT w/ 1.6 should be 6.42
CAM TYPE: SOLID ROLLER
PRODUCT USE: DRAG
Manufacturer: ISKY
Part#: 201602
installed @ 106.5 deg

jesel 1.6 SPORTSMAN SERIES SHAFT ROCKERS





Total weight= 3900
Front/Rear not sure 3 1/2" drop frnt 4 3/4" rear. Alum heads and fiberglass hood, batter in front fuel cell all the way in back. Rs 9000 on all 4 corners.

trbo 350 w/ hughes manual valve body. stock trans gears
3500 hd hughes
4:10
Differential - spool
Hoosiers "18131" 26.0/10.0-15 http://www.hoosiertire.com/specdrag.htm